Using a round bowl or cup that is four inches in diameter, push the round circle into the bread to create a stencil. Cut the bread with clean pair of kitchen scissors or a sharp knife so that you have two round slices of bread. OR, use a round cookie cutter to cut the bread slices.

Spread the peanut butter on one slice of the bread.

Slice the banana and place the sliced banana on the peanut butter leaving room around the edges. Place the second slice on top to create a sandwich. Seal the two slices of bread together by using a fork to go around and press the edges.

Evenly spread a ½ teaspoon of butter on each outer side of the sandwich.

Heat a skillet or frying pan on medium heat. Cook the sandwich like a grilled cheese sandwich would be cooked. Serve with a side of vegetables and/or fruit and yogurt.